Water / Wastewater

The Water-Wastewater Utility is owned by the City of San Marcos and operates a high quality wastewater treatment plant and water system rated superior by the State of Texas. Roughly 2/3 of the City's water comes from surface water treated at the City's Water Plant under the operation of the Guadalupe-Blanco River Authority. The utility promotes water conservation and works closely with agencies such as the GBRA, the Edwards Aquifer Authority, the Texas Commission on Environmental Quality and other organizations to develop regional water policies.

Help keep water costs down--report a leak.

Report water waste at 512-393-8360.

The City of San Marcos strives to protect the Edwards Aquifer Recharge Zone which lies under the western portion of the city.

  1. Upcoming Library Events: Dec. 5 to Dec. 11

    Stronger Together Volunteer Fair, Free Legal Advice from Licensed Attorneys, Hour of Code and much more this week at the San Marcos Public Library! Read on...
  2. City to Dedicate Mural at Wonder World Cave & Adventure Park

    The City of San Marcos invites the public to celebrate the dedication of its newest mural on Saturday, Dec. 7 at noon at Wonder World Cave & Adventure Park, 1000 Prospect Street. Read on...
  3. December City Hall Calendar

    Meetings listed below are subject to change. Please check with the City Clerk's office for official postings. Read on...
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